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org.apache.lens.cube.metadata.timeline
Class StoreAllPartitionTimeline

java.lang.Object
  org.apache.lens.cube.metadata.timeline.PartitionTimeline
      org.apache.lens.cube.metadata.timeline.StoreAllPartitionTimeline

All Implemented Interfaces:

Iterable<TimePartition>

public class StoreAllPartitionTimeline
extends PartitionTimeline

Implementation of PartitionTimeline that stores all partitions as a tree set. Created for instrumentation purposes. Helps in test cases. In real life scenarios, this would be almost always end up causing out of memory error.

Constructor Summary

StoreAllPartitionTimeline(String storageTableName, UpdatePeriod updatePeriod, String partCol)

Method Summary

boolean	add(Collection<TimePartition> partitions) Add multiple partitions to timeline
boolean	add(TimePartition partition) Add partition to timeline
boolean	drop(TimePartition toDrop) drop partition.
boolean	exists(TimePartition partition) Checks partition existance
boolean	initFromProperties(Map<String,String> properties) deserialize member variables from given map
boolean	isConsistent() whether timeline is in consistent state
boolean	isEmpty() Whether No partitions have been registered
Iterator<TimePartition>	iterator()
TimePartition	latest() latest partition.
Map<String,String>	toProperties() serialize member objects as map

Methods inherited from class org.apache.lens.cube.metadata.timeline.PartitionTimeline

addForBatchAddition, commitBatchAdditions, getLatestDate, init, updateTableParams

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

StoreAllPartitionTimeline

public StoreAllPartitionTimeline(String storageTableName,
                                 UpdatePeriod updatePeriod,
                                 String partCol)

Method Detail

add

public boolean add(@NonNull
                   TimePartition partition)
            throws LensException

Description copied from class: PartitionTimeline

Add partition to timeline

Specified by:

add in class PartitionTimeline

Returns:

whether add was successful

Throws:

LensException

add

public boolean add(@NonNull
                   Collection<TimePartition> partitions)
            throws LensException

Description copied from class: PartitionTimeline

Add multiple partitions to timeline

Overrides:

add in class PartitionTimeline

Returns:

whether add was successful

Throws:

LensException

drop

public boolean drop(@NonNull
                    TimePartition toDrop)
             throws LensException

Description copied from class: PartitionTimeline

drop partition.

Specified by:

drop in class PartitionTimeline

Returns:

whether drop was successful

Throws:

LensException

latest

public TimePartition latest()

Description copied from class: PartitionTimeline

latest partition. will be null if no partitions exist.

Specified by:

latest in class PartitionTimeline

Returns:

toProperties

public Map<String,String> toProperties()

Description copied from class: PartitionTimeline

serialize member objects as map

Specified by:

toProperties in class PartitionTimeline

Returns:

initFromProperties

public boolean initFromProperties(Map<String,String> properties)
                           throws LensException

Description copied from class: PartitionTimeline

deserialize member variables from given map

Specified by:

initFromProperties in class PartitionTimeline

Returns:

true if after deserializing, the timeline is in consistent state

Throws:

LensException

See Also:

PartitionTimeline.isConsistent()

isEmpty

public boolean isEmpty()

Description copied from class: PartitionTimeline

Whether No partitions have been registered

Specified by:

isEmpty in class PartitionTimeline

Returns:

isConsistent

public boolean isConsistent()

Description copied from class: PartitionTimeline

whether timeline is in consistent state

Specified by:

isConsistent in class PartitionTimeline

Returns:

exists

public boolean exists(TimePartition partition)

Description copied from class: PartitionTimeline

Checks partition existance

Specified by:

exists in class PartitionTimeline

Returns:

iterator

public Iterator<TimePartition> iterator()